UKF无迹卡尔曼滤波用于地磁场的计算，但由于保密原因，录入的数据信息已删除，主要用于UKF框架的交流-Unscented Kalman filter UKF is used to calculate the magnetic field, but because of confidentiality reasons, the entry of data has been deleted, the main fr a mework for the exchange of UKF